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Multi-component silicone sealant and preparation method thereof

A silicone sealant, multi-component technology, applied in the field of sealants, can solve the problem that the single-component silicone sealant cannot meet the needs of quick processing of doors and windows, etc., and achieves convenient color matching, easy mixing, and good mechanical properties. Effect

Inactive Publication Date: 2017-06-13
GUANGZHOU BAIYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics of one-component silicone sealant can no longer meet the needs of rapid processing of existing doors and windows

Method used

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  • Multi-component silicone sealant and preparation method thereof
  • Multi-component silicone sealant and preparation method thereof
  • Multi-component silicone sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The multi-component silicone sealant of this embodiment is composed of component A, component B and component C, and the preparation raw materials of each component are as follows (in parts by weight):

[0062] Component A: 90 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 12000 mPa.s, 10 parts of simethicone oil with a viscosity of 100 mPa.s, and 100 parts of nano-active calcium carbonate.

[0063] Component B: 4 parts of simethicone oil with a viscosity of 1000mPa.s, 2 parts of nano-active calcium carbonate, 2 parts of heavy calcium carbonate, 3 parts of tetrabutylketoxime silane, 3 parts of dimethyl dibutylketoxime silane 2 parts of γ-aminopropyltriethoxysilane, 1 part of γ-glycidyloxypropyltrimethoxysilane, and 0.2 part of dibutyltin dilaurate.

[0064] Component C: 6 parts of simethicone oil with a viscosity of 350 mPa.s, 2 parts of carbon black, and 2 parts of fluorosilicone defoamer.

[0065] The preparation method of the multi-component silicone...

Embodiment 2

[0072] The multi-component silicone sealant of this embodiment is composed of component A, component B and component C, and the preparation raw materials of each component are as follows (in parts by weight):

[0073] Component A: 100 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 6000 mPa.s, 80 parts of nano-active calcium carbonate, 40 parts of heavy calcium carbonate, and 0.5 part of polyamide wax.

[0074] Component B: 12 ​​parts of α, ω-dihydroxy polydimethylsiloxane with a viscosity of 1500mPa.s, 8 parts of nano-active calcium carbonate, 2 parts of tetrabutylketoxime silane, vinyl tributylketoxime silane 3 parts, 3 parts of methylvinyl dibutylketoxime silane, 3 parts of γ-aminopropyl trimethoxysilane, 1 part of epoxycyclohexyl triethoxysilane, 0.2 part of dibutyltin diacetate.

[0075] Component C: 8 parts of dimethyl silicone oil with a viscosity of 1000 mPa.s, 3 parts of iron oxide red, and 1 part of fluorosilicone defoamer.

[0076] The preparation me...

Embodiment 3

[0083] The multi-component silicone sealant of this embodiment is composed of component A, component B and component C, and the preparation raw materials of each component are as follows (in parts by weight):

[0084] Component A: 100 parts of trimethoxy-terminated polydimethylsiloxane with a viscosity of 20000 mPa.s, 70 parts of nano-active calcium carbonate, 50 parts of silicon micropowder, and 0.6 part of polypropylene glycol.

[0085] Component B: 12 ​​parts of simethicone oil with a viscosity of 12000mPa.s, 6 parts of nano-active calcium carbonate, 4 parts of phenyltributanoximinosilane, and 3 parts of methylvinylbis(N-methylacetamido)silane 3 parts of N-β-aminoethyl-γ-aminopropyltriethoxysilane, 1 part of epoxycyclohexyltriethoxysilane, and 0.2 parts of dibutyltin bis(β-diketone ester).

[0086] Component C: 10 parts of dimethyl silicone oil with a viscosity of 1000 mPa.s, 2 parts of carbon black, 2 parts of orange red, and 2 parts of fluorosilicone defoamer.

[0087] T...

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Abstract

The invention relates to a multi-component silicone sealant for door and window sealing and a preparation method thereof. The multi-component silicone sealant comprises a component A, a component B and a component C, the weight ratio of the component A and the component B is (7:1)-(15:1), the weight ratio of the component A and the component C is (10:1)-(30:1); the component A is prepared from an organic polysiloxane polymer, an inorganic filler and a thixotropic agent, the component B is prepared from an organic polysiloxane polymer, an inorganic filler, a silane composite crosslinker, a silane coupling agent and an organic tin catalys, and the component C is prepared from an organic polysiloxane polymer, an organosilicon defoamer, and a toner. The multi-component silicone sealant has the advantages that the curing is fast and is not affected by the environmental humidity, and can be adjusted in a certain ranged; the multi-component silicone sealant has good adhesion for door and window materials, is simple in color blending and convenient for being adjusted to a desired color of a user, and has good mechanical properties.

Description

technical field [0001] The invention relates to the field of sealants, in particular to a multi-component silicone sealant and a preparation method thereof. Background technique [0002] Silicone sealants have excellent UV aging resistance, weather aging resistance and bonding performance. At present, they have been widely used in the structural bonding of glass curtain walls in the construction industry, the secondary sealing of insulating glass, and the sealing of building exterior walls and internal joints. , Sealing and bonding of door and window joints, etc. [0003] The sealant used for sealing doors and windows needs to be formulated in various colors according to the profiles and user needs. The existing two-component silicone sealants cannot meet the color-matching requirements. Therefore, two-component silicone sealants are rarely used in the field of door and window sealing. The existing silicone sealants for door and window joints are almost all one-component s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J183/04C09J11/04C09J11/06C09J11/08
CPCC08K2201/011C08K2201/014C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J183/06C08L83/04C08K13/02C08K2003/265C08K3/04C08L83/06C08K2003/2272C08K3/36
Inventor 蒋金博张冠琦黄恒超
Owner GUANGZHOU BAIYUN CHEM IND
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